7.13 Settings in the execution environment

This section describes the settings in the execution environment for using the Explicit Memory Management functionality.

Important note

On the J2EE server, objects related to an HTTP session are set to be placed in the Explicit heap area by default.

Before starting the operations, estimate the required Explicit heap memory size and tune JavaVM option (-XX:HitachiExplicitHeapMaxSize option) to an appropriate value. For details on the tuning of the Explicit heap, see 7.3.2 Tuning procedure in the uCosminexus Application Server System Design Guide.

Organization of this section

• 7.13.1 Common settings for using the Explicit Memory Management functionality (setting JavaVM options)

• 7.13.2 Using the Explicit Memory Management functionality by using the automatic placement configuration file

• 7.13.3 Controlling application target of the Explicit Memory Management functionality by using a configuration file

• 7.13.4 Settings for using the function on the J2EE server

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